• Asian-Australasian Journal of Animal Sciences
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• v.19 no.7
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• pp.970-977
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• 2006

Forage oat (Avena sativa L.) is grown extensively in a double-cropping system on dairy farms. Four oat varieties ('Swan', 'Targa', 'Foothill', and 'Nugene') were evaluated for forage production and forage quality during two growing seasons (spring and autumn) at two locations (central and southern region) in South Korea. The heading stage of four oat varieties was observed during spring, but the autumn season did not produce heading until harvest time except for the 'Swan' variety (early-maturing variety). The heading stage of 'Swan' in both locations was earlier compared to other varieties. The four varieties were resistant to both foliar disease and insects. Lodging resistance was higher during autumn except in 2002 at the central region, and late-maturing varieties ('Foothill' and 'Nugene') have lower lodging resistance. Dry matter (DM) content was significantly different between varieties (p<0.001). Comparing different varieties, 'Swan', an early-maturing variety, was highest in DM content. In DM, total digestible nutrients (TDN) and crude protein (CP) yield, the yield of oat varieties in the southern region was higher than in the central region, and forage yield of the oat varieties in the spring season was higher than during the autumn season. The DM and TDN yield showed significant differences between oat varieties. The CP content of oats grown in the central region (Cheonan) was lower than oats grown in the southern region (Daegu), and the spring season produced oats with lower CP compared to the autumn season. Among the four oat varieties, the CP content of late-maturing varieties was higher than the Swan variety (early-maturing variety). The acid detergent fiber (ADF) and neutral detergent fiber (NDF) contents were higher for the varieties grown in Cheonan and during the spring season. The ADF and NDF contents of late-maturing varieties were lower than the early-maturing variety. TDN and relative feed value (RFV) were higher for the varieties grown in Daegu and during the autumn season. Late-maturing variety had higher TDN and RFV than early-maturing variety. Our study showed differences in forage production and forage quality of oats grown in different locations, seasons and varieties. Forage quality as well as forage production was better in the southern region than in the central region. Forage quality was better during autumn, but forage production was better during spring. Late-maturing variety had better forage quality than the early-maturing variety. Therefore, late-maturing varieties are more suitable for use in the southern region.

• The Journal of the Korea Contents Association
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• v.14 no.10
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• pp.51-63
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• 2014

This paper deals with how Korean television musical variety show rose and declined focusing the 'Show Show Show'. 'Show Show Show' was a Korean television musical variety show that ran on TBC-TV every Saturday night at 8pm. until TBC-TV was absorbed into KBS-TV in 1980. Its musical acts, of various kinds, were interspersed with comic turns and special items including dancing, mime, magic, and acrobat. Korean television musical variety show worked on what audiences had in common across generational divides till the late 1970s. 'Show Show Show's catchall format didn't cross the demographic lines like it used to. But the young generation demanded music program that spoke to their own condition in the early 1980s. 'Show Show Show' ended on KBS-TV in July 1983 through the influence of the absorption of TBC-TV into KBS-TV and the changes of cultural circumstances. The decline of the television musical variety show was attributable to the fragmentation of musical taste and the change of viewing behaviors.

• The Journal of the Korea Contents Association
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• v.13 no.7
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• pp.168-180
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• 2013

Based on the strategic contingency theory, this study empirically examines Korean TV drama producers' changing adaptive behaviors in terms of genre variety given different levels of environmental uncertainty. The extant literature has suggested that firms tend to increase product variety in order to cope with increasing environmental uncertainty. This study attempted to verify the hypothesis that TV drama producers would employ wider variety of genre in the period with more uncertain environment(2003-2009) than the period with stable environment(1994-2002). Empirical results support the hypothesis, implying that TV drama producers tend to repeatedly produce dramas with the same genre in order to pursue efficiency in stable environment whereas they tend to employ a variety of different genre in order to cope with increasing environmental uncertainty.

• Journal of The Korean Society of Grassland and Forage Science
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• v.43 no.3
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• pp.162-167
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• 2023

The experiment aim to breed an early-maturing variety of Italian ryegrass (Lolium multiflorum Lam.). It was conducted at the Grassland and Forage Crops Division, National Institute of Animal Science, RDA, Cheonan, Korea, from 2022 to 2023. The new variety named "Oasis" is a diploid with green leaves and has a semi-erect growth habit in late fall, and an erect growth habit in early spring. With a heading date of May 10, Oasis is categorized as an early-maturing variety. Compared with the "Florida80" as a control variety, Oasis's flag leaf was 1 mm wider and 2 cm shorter, while the plant length was 7.8 cm longer. Additionally, the ear of Oasis was 1.2 cm longer than that of Florida80, and it showed lodging resistance. The dry matter yield of Oasis (8,805 kg/ha) was higher than that of Florida80. The total digestible nutrient and crude protein contents of Oasis were 64.5%, and 9.3%, respectively, which were 1.1% and 0.6% higher than those of Florida80, respectively. The neutral and acid detergent fiber contents in Oasis were 54.2% and 30.8%, respectively, which was 1.9% and 1.4% lower than those of Florida80, respectively. These results indicate that Oasis has good dry matter yield in the most of region and especially, middle and northern region of South Korea.

• Korean Journal of Medicinal Crop Science
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• v.4 no.3
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• pp.261-264
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• 1996

This study was carried out to obtain a basic informations for the improvement of human health and the development of variety through analysis of inorganic compounds, contents of amino acids and saccharids to three elephant- foots (Amporphophallus Konjac. K) collected from Kumsan, Japan and China. Mannan as a carbohydrate of major component of an elephant-food was slightly high in Kumsan than that of Japan and China variety. Degree of viscosity of an elephant-foot depends upon the soluble free sugar contents and amino acid, contents of these free sugars were high in the order of Kumsan, China and Japan elephant-foot powder. Results of analysis of inorganic compounds to an elephant-foot used; Kumsan variety was shown to be high than those of China and Japan, especially. K, P and Fe in Kumsan variety were high, while Na and Ca were appeared to be high in China elephant-foot.

• Korean journal of applied entomology
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• v.9 no.1
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• pp.15-20
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• 1970

An investigation was carried out to know the relationship between resistance of rice varieties to blast disease and the chemical components, especially total nitrogen and total sugars, in the rice plants. The results sic summarized as follow: 1) The nitrogen contents in the resistant variety were less than those of susceptible one, and sugar contents were reversed. Accordingly, the C/N ratio in the resistant variety was higher than that obtained by susceptible one. 2) The free amino acids contents, especially, Glutamine, Valine, Leusine and Iso-leusine, in the resistant varieties were more than those of the susceptible varieties. 3) The starch synthetic activity of rice leaves in the resistant varieties was higher than that of susceptible one in fructose and glucose solutions, but it was reversed in sucrose solution. 4) When more nitrogen was dressed, the total nitrogen content of rice leaves was increased than the ordinary dressing. The rate of increase in nitrogen content in resistant variety was lower than those of the susceptible. The total sugar content of rice plants dressed more nitrogen was decreased at early tillering stage, but increased at maximum tillering stage. It seemed that the rate of increase of total sugar in the resistant variety was higher than those of the susceptible.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.54 no.2
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• pp.159-164
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• 2009

The difference of ginsenosides content according to placement of ginseng planting (line) under shading net in 5-year-old ginseng roots were examined. The total saponin ($Rb_1$, $Rb_2$, Rc, Rd, Re, and $Rg_1$) contents were 15.01 mg/g and 21.79 mg/g in the main roots, 35.93 mg/g and 43.32 mg/g in the lateral roots, 87.85 mg/g and 105.51 mg/g in the fine roots for the front $1st{\sim}2nd$ lines in Yunpoong and Landrace variety (purple-stem variant), respectively. In the middle $3rd{\sim}5th$ lines the total saponin contents were 18.73 mg/g and 23.19 mg/g in the main roots, 44.92 mg/g and 43.50 mg/g in the lateral roots, 92.97 mg/g and 110.70 mg/g in the fine roots in Yunpoong and Landrace variety, respectively. In the rear $6th{\sim}7th$ lines the total saponin contents were 21.88 mg/g and 26.68 mg/g in the main roots, 38.41 mg/g and 44.89 mg/g in the lateral roots, 101.03 mg/g and 107.06 mg/g in the fine roots in Yunpoong and Landrace variety, respectively. The differences in total and individual ginsenosides content in the main, lateral and fine roots among the lines were not significant but total ginsenosides contents in the main roots were different in case of Yunpoong variety. The ratios of protopanaxadiol (PD) type saponin to protopanaxatriol (PT) type saponin in roots were lower in the front lines compared to the middle and rear lines and the ratios were significantly different among the parts of roots.

• International Journal of Advanced Culture Technology
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• v.4 no.2
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• pp.7-18
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• 2016

The first D2C-era web-real variety show in Korea was broadcast via tvN of CJ E&M. The web-real variety program 'SinSeoYuGi' accumulated 54 million views, along with 50 million views at the Chinese portal site QQ. This study carries out an analysis using text mining that extracts portal site blogs, twitter page views and associative terms. In addition, this study derives viewers' response by extracting key words with opinion mining techniques that divide positive words, neutral words and negative words through customer sentiment analysis. It is found that the success factors of the web-real variety were reduced in appearance fees and production cost, harmony between actual cast members and scenario characters, mobile TV programing, and pre-roll advertising. It is expected that web-real variety broadcasting will increase in value as web contents in the future, and be established as a new genre with the job of 'technical marketer' growing as well.

• Applied Biological Chemistry
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• v.25 no.4
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• pp.201-205
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• 1982

As a series of study on the removal of astringency and production of tannin substances, this experiment was conducted to investigate changes of tannin contents and microscopic observation on leaves of persimmon(Diospyros kaki L.). Changes of tannin contents of leaves and fruits in Daegu Bansi(astringent variety) were of similar tendency in content of total and soluble tannin during growth. It seemed therefore that tannin contents of leaves in astringent variety were closely concerned with tannin of fruits. But Fuyu(sweet variety) was different from each other during its growth. Histological form of leaves in microscopic observation had similar tendency between astringent and sweet varieties. It was observed that tannin substances were contained in epidermis cells of levels, that tannin substances were transfered in phloems of nerves system, and that tannin cell existed too in the vicinity of nerves system.

• Preventive Nutrition and Food Science
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• v.21 no.2
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• pp.97-103
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• 2016

In our previous study, an early-maturing variety of rice (Oryza sativa L.), Jinbu can have feature with unique green color, various phytochemicals as well as nutritive components by the optimal early harvesting, called Green Rice$^{(R)}$ (GR). The aims of the present field experiments were to evaluate the changes in the weight of 1,000 kernels, yield, and contents of proximate and bioactive compounds in Chuchung, a mid-late maturing variety, during the pre-harvest maturation of rough rice and to research the appropriate harvest time and potent bioactivity of Chuchung GR. The weights of 1,000 kernels of Chuchung GR dramatically increased until 27 days after heading (DAH). The yields of Chuchung GR declined after 27 DAH and significantly declined to 0.0% after 45 DAH. The caloric value and total mineral contents were higher in the GR than in the full ripe stage, the brown rice (BR). In the GR, the contents of bioactive compounds, such as ${\gamma}$-aminobutyric acid, ${\gamma}$-oryzanol, and ${\alpha}$-tocopherol, were much higher (P<0.05) than those in the BR, specifically during 24~27 DAH. Therefore, bioactive Chuchung GR can be produced with a reasonable yield at 24~27 DAH and it could be useful for applications in various nutritive and functional food products.